CA921574A - Feed-forward amplifier with frequency shaping - Google Patents
Feed-forward amplifier with frequency shapingInfo
- Publication number
- CA921574A CA921574A CA066614A CA66614A CA921574A CA 921574 A CA921574 A CA 921574A CA 066614 A CA066614 A CA 066614A CA 66614 A CA66614 A CA 66614A CA 921574 A CA921574 A CA 921574A
- Authority
- CA
- Canada
- Prior art keywords
- feed
- forward amplifier
- frequency shaping
- shaping
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/42—Modifications of amplifiers to extend the bandwidth
- H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
- H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/04—Control of transmission; Equalising
- H04B3/06—Control of transmission; Equalising by the transmitted signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/198—A hybrid coupler being used as coupling circuit between stages of an amplifier circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/372—Noise reduction and elimination in amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Amplifiers (AREA)
- Networks Using Active Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US81924769A | 1969-04-25 | 1969-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA921574A true CA921574A (en) | 1973-02-20 |
Family
ID=25227604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA066614A Expired CA921574A (en) | 1969-04-25 | 1969-11-04 | Feed-forward amplifier with frequency shaping |
Country Status (9)
Country | Link |
---|---|
US (1) | US3541467A (en) |
JP (1) | JPS4911777B1 (en) |
BE (1) | BE748995A (en) |
CA (1) | CA921574A (en) |
DE (1) | DE2019104C3 (en) |
FR (1) | FR2046492A5 (en) |
GB (1) | GB1302605A (en) |
NL (1) | NL165618C (en) |
SE (1) | SE351956B (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1232912A (en) * | 1969-02-20 | 1971-05-26 | ||
US3667065A (en) * | 1970-09-04 | 1972-05-30 | Bell Telephone Labor Inc | Feed-forward amplifier having arbitrary gain-frequency characteristic |
US3737797A (en) * | 1971-03-26 | 1973-06-05 | Rca Corp | Differential amplifier |
US3971993A (en) * | 1972-04-21 | 1976-07-27 | Constant James N | High capacity recirculating delay loop integrator |
US3906401A (en) * | 1974-09-03 | 1975-09-16 | Bell Telephone Labor Inc | Feedforward error correction in interferometer modulators |
SE385177B (en) * | 1975-08-28 | 1976-06-08 | Ericsson Telefon Ab L M | ADVANCED AMPLIFIER |
US3993961A (en) * | 1975-10-31 | 1976-11-23 | Bell Telephone Laboratories, Incorporated | Overcompensated feedforward method and apparatus using overdistorted main amplifiers |
US4028634A (en) * | 1976-02-11 | 1977-06-07 | Bell Telephone Laboratories, Incorporated | Feed-forward amplifier with simple resistive coupling |
GB1542081A (en) * | 1976-08-19 | 1979-03-14 | Standard Telephones Cables Ltd | Feedforward amplifiers |
FR2418981A1 (en) * | 1978-03-03 | 1979-09-28 | Lignes Telegraph Telephon | AMPLIFICATION CIRCUIT FOR HYPERFREQUENCY TELECOMMUNICATION |
DE2915947A1 (en) * | 1979-04-20 | 1980-11-06 | Siemens Ag | CIRCUIT ARRANGEMENT FOR REDUCING AMPLITUDE-DEPENDENT DISTORTIONS IN OVERLAY RECEIVERS |
US4447790A (en) * | 1980-10-13 | 1984-05-08 | Nippon Columbia Kabushikikaisha | Distortion eliminating circuit |
US4394624A (en) * | 1981-08-07 | 1983-07-19 | The United States Of America As Represented By The Secretary Of The Navy | Channelized feed-forward system |
DE3220252C2 (en) * | 1982-05-28 | 1985-09-12 | Siemens AG, 1000 Berlin und 8000 München | Procedure for eliminating distortion in amplifiers |
US4517521A (en) * | 1984-02-28 | 1985-05-14 | C-Cor Electronics, Inc. | Feed forward circuit and a method for aligning and balancing the same |
US4583049A (en) * | 1984-06-15 | 1986-04-15 | Trw Inc. | Feed-forward circuit |
US5547274A (en) * | 1990-03-14 | 1996-08-20 | Orchard Communications Inc. | Modulated light source with a linear transfer function |
GB9009295D0 (en) * | 1990-04-25 | 1990-06-20 | Kenington Peter B | Apparatus and method for reducing distortion in amplification |
US5334946A (en) * | 1990-04-25 | 1994-08-02 | British Technology Group Limited | Apparatus and method for reducing distortion in amplification |
US5065110A (en) * | 1990-05-02 | 1991-11-12 | Teledyne Mec | Feed-forward amplifier including phase correction |
US5768699A (en) * | 1995-10-20 | 1998-06-16 | Aml Communications, Inc. | Amplifier with detuned test signal cancellation for improved wide-band frequency response |
US5808512A (en) * | 1997-01-31 | 1998-09-15 | Ophir Rf, Inc. | Feed forward amplifiers and methods |
US6285252B1 (en) | 1999-09-30 | 2001-09-04 | Harmonic Inc. | Apparatus and method for broadband feedforward predistortion |
US7091781B2 (en) * | 2004-10-29 | 2006-08-15 | Motorola, Inc. | Wideband feed forward linear power amplifier |
US7656236B2 (en) | 2007-05-15 | 2010-02-02 | Teledyne Wireless, Llc | Noise canceling technique for frequency synthesizer |
US8179045B2 (en) | 2008-04-22 | 2012-05-15 | Teledyne Wireless, Llc | Slow wave structure having offset projections comprised of a metal-dielectric composite stack |
US9202660B2 (en) | 2013-03-13 | 2015-12-01 | Teledyne Wireless, Llc | Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes |
US9831835B2 (en) * | 2016-02-26 | 2017-11-28 | Nxp Usa, Inc. | Multiple path amplifier with pre-cancellation |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2592716A (en) * | 1949-03-25 | 1952-04-15 | Bell Telephone Labor Inc | Self-correcting amplifier |
-
1969
- 1969-04-25 US US819247A patent/US3541467A/en not_active Expired - Lifetime
- 1969-11-04 CA CA066614A patent/CA921574A/en not_active Expired
-
1970
- 1970-04-15 BE BE748995D patent/BE748995A/en not_active IP Right Cessation
- 1970-04-17 SE SE05342/70A patent/SE351956B/xx unknown
- 1970-04-20 NL NL7005675.A patent/NL165618C/en not_active IP Right Cessation
- 1970-04-21 DE DE2019104A patent/DE2019104C3/en not_active Expired
- 1970-04-23 JP JP45034369A patent/JPS4911777B1/ja active Pending
- 1970-04-24 GB GB1971770A patent/GB1302605A/en not_active Expired
- 1970-04-24 FR FR7015096A patent/FR2046492A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL165618C (en) | 1981-04-15 |
SE351956B (en) | 1972-12-11 |
BE748995A (en) | 1970-09-16 |
DE2019104C3 (en) | 1978-06-08 |
NL165618B (en) | 1980-11-17 |
DE2019104B2 (en) | 1977-10-20 |
US3541467A (en) | 1970-11-17 |
GB1302605A (en) | 1973-01-10 |
DE2019104A1 (en) | 1970-11-12 |
NL7005675A (en) | 1970-10-27 |
FR2046492A5 (en) | 1971-03-05 |
JPS4911777B1 (en) | 1974-03-19 |
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